id:A098991 - OEIS Search Results

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Numbers n where A098035(n)=0.

+0
1

5, 9, 13, 15, 21, 27, 33, 35, 37, 39, 50, 55, 57, 61, 65, 73, 91, 93, 95, 111, 114, 115, 121, 122, 133, 141, 143, 145, 147, 155, 157, 170, 177, 183, 185, 189, 193, 195, 201, 205, 209, 213, 215, 217, 219, 231, 235, 247, 253, 259, 261, 277, 285, 295, 299, 301, 313 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`Leroy Quet, Home Page (listed in lieu of email address)`
	FORMULA	`Sum_{k\|n} mu(k+1), where mu() is Moebius function.`
	MATHEMATICA	`f[n_] := Plus @@ MoebiusMu[Divisors[n] + 1]; Select[ Range[319], f[ # ] == 0 &]`
	CROSSREFS	`Cf. A098035.` `Sequence in context: A160522 A062976 A080580 this_sequence A116616 A080590 A051541` `Adjacent sequences: A098988 A098989 A098990 this_sequence A098992 A098993 A098994`
	KEYWORD	`nonn`
	AUTHOR	`Leroy Quet and Robert G. Wilson v (rgwv(AT)rgwv.com), Nov 05 2004`

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Last modified December 19 21:04 EST 2009. Contains 171054 sequences.

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